Gwen could not believe what she has just found out. Merlin was a sorcerer.
No; a warlock.
Weird but she knew it was true, really always had. There had always been something about him. No. She would not betray her friend.
She promised not to tell anyone about it and she wouldn’t. Not even Arthur, considering that Merlin hadn't told him yet.
She thought about it all night and came to the conclusion that she understood perfectly well how dangerous for Merlin it would be. Still she felt uneasy to keep something from Arthur. She couldn't understand how Merlin could live with keeping this secret...